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| Unique Phyllocarid, Algae, and Trilobite Association |
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OTHER ARTHROPODS
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| Stock Number XIOA17 |
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Name:
Branchiocaris sp., Margaretia dorus, Asaphiscus wheeleri
Age: Middle Cambrian
Formation: Wheeler Shale (Red Zone)
Location: Millard County, Utah
Size: Plate is 4.7" X 5.0"
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Here is a very rare Cambrian association. There is a Branchiocaris (phyllocarid), Margaretia (algae), and Asaphiscus (trilobite) fossilized together on this plate. The Burgess Shale or Chengjiang are probably the only other places in the world where one could find a plate like this. Phyllocarids are among the lesser known crustaceans. They are distinguished by a rather large carapace, hinged at the top, which sheltered the anterior part of the body. This specimen has beautiful red coloration and contrasts wonderfully with the matrix. In the upper left of the plate is the Margaretia algae. Under magnification, the detail of the algae is easily seen. Also on the plate is a ghost image of an Asaphiscus trilobite. This is unusual because Elrathia are much more common trilobites in this formation. This is a unique plate of Middle Cambrian organisms all preserved together.
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